expat XML parser

I've just upgraded to SuSE 9 from 7.1 and I can't figure out what or where the expat libraries are. There seems to have been some sort of organisational change since the old xmlparse.h seems to have been replaced by expat.h in /usr/lib. Yast2 says expat is installed, and expat.h is there, but I can't find anything that looks like the expat library. Can anyone help, please? Alan Lenton